Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/33322
Title: The electrocatalytic oxidation of methanol by a ruthenium(V) oxo complex
Authors: Lai, YK
Wong, KY 
Keywords: Methanol oxidation
Nafion films
Ruthenium catalyst
Issue Date: 1993
Publisher: Pergamon Press
Source: Electrochimica acta, 1993, v. 38, no. 7, p. 1015-1021 How to cite?
Journal: Electrochimica acta 
Abstract: cis-[Ruv(L)(Cl)(O)]2+ (L = N,N′-dimethyl-N,N′-bis(2-pyridylmethyl)ethylenediamine) is an active catalyst for the electro-oxidation of methanol in solution. The second order rate constants for the reaction between cis-[Ruv(L)(Cl)(O)]2+ and CH3OH, CH3OD and CD3OH evaluated by rotating disc voltammetry are (6.6 ± 0.6) × 102, (5.5 ± 0.6) × 102 and (6.6 ± 0.5) × 10dm3mol-1 s-1, respectively. The large kinetic isotope effect for CH3OH (kH/kD = 10) indicates the importance of α-CH bond cleavage in the transition state. A chemically modified electrode prepared by immobilization of the ruthenium complex inside a Nafion film on the pyrolytic graphite electrode surface is capable of catalyzing the electro-oxidation of methanol. Reduction and/or oxidation of the complex inside Nafion would lead to the irreversible conversion of the catalyst to a new species which is catalytically inactive.
URI: http://hdl.handle.net/10397/33322
ISSN: 0013-4686
DOI: 10.1016/0013-4686(93)87021-5
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